A creasing device for carton processing

By introducing a height-adjustable creasing plate and scale indicator into the creasing device for carton processing, and combining it with a pressure roller and spring buffer mechanism, the problems of inconvenient creasing depth adjustment and insufficient precision are solved, achieving precise control and stable fixation of creasing, and improving creasing accuracy and finished product quality.

CN224360794UActive Publication Date: 2026-06-16CHANGSHU QUANNENG PACKAGING TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGSHU QUANNENG PACKAGING TECHNOLOGY CO LTD
Filing Date
2025-07-23
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Existing creasing devices for carton processing are inconvenient to operate and lack precision when adjusting the creasing depth, and the lack of scale markings leads to inaccurate height adjustment.

Method used

It employs a height-adjustable indentation tray combined with a scale indicator, and achieves precise adjustment of indentation depth through a worm gear mechanism, while ensuring stable fixation of the cardboard through a mechanism with pressure rollers and spring buffers.

🎯Benefits of technology

It enables precise and visual adjustment of the indentation depth, avoids indentation deviation caused by cardboard displacement, and significantly improves indentation accuracy and finished product quality.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224360794U_ABST
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Abstract

The utility model relates to carton processing technical field, concretely is a kind of indentation device for carton processing, including workbench, its top middle part is equipped with guide slot, the inside of guide slot is provided with indentation support plate, and height adjusting mechanism is provided between indentation support plate and workbench;Support is fixedly connected to the middle right end outside of workbench, the top of support is fixedly connected with transverse plate, and the below of transverse plate is provided with indentation mechanism.The utility model is adjusted by the indentation support plate of height adjustable cooperation scale indication, the accurate visual adjustment of indentation depth is realized, and operator can accurately control indentation depth by observing the corresponding relationship of pointer and scale, the precision problem caused by the experience adjustment of traditional equipment is solved, makes indentation depth adjustment more intuitive, accurate and repeatable.
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Description

Technical Field

[0001] This utility model relates to the field of cardboard box processing technology, specifically to an indentation device for cardboard box processing. Background Technology

[0002] Cardboard box processing involves many steps, including creasing the cardboard used to make the boxes. The purpose of creasing is to facilitate the cutting and positioning of the cardboard in subsequent processes and to make it easier to fold the paper into boxes.

[0003] For example, the creasing device for carton processing disclosed in authorization announcement number CN222921160U includes a placement platform, an electric telescopic rod above the placement platform, a mounting frame installed at the telescopic end of the electric telescopic rod, and a creasing inspection structure installed on the mounting frame. The beneficial effects of this utility model are as follows: by setting an adjustment structure, rotating the second rotating block causes it to move the creasing groove block up or down, achieving the purpose of moving the creasing groove up or down, so that the creasing groove matches the depth of the adjustment groove to match the required creasing depth of the cardboard.

[0004] Although the aforementioned patent allows for adjustment of the indentation depth by adjusting the height of the indentation groove, the second rotating block is located inside the operating port, making operation extremely inconvenient. Furthermore, the lack of scale markings results in insufficient precision during height adjustment. Utility Model Content

[0005] The purpose of this invention is to provide a creasing device for carton processing to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A creasing device for cardboard box processing, comprising

[0008] The workbench has a guide groove at the top center, an indentation support plate inside the guide groove, and a height adjustment mechanism between the indentation support plate and the workbench.

[0009] The support is fixedly connected to the outer side of the right end of the middle part of the workbench. A horizontal plate is fixedly connected to the top of the support, and an indentation mechanism is provided below the horizontal plate.

[0010] Preferably, the height adjustment mechanism includes a worm gear rotatably connected to the inner side of the bottom of the middle part of the worktable via a bearing, and a sleeve vertically fixed to the bottom of the middle part of the indentation plate. A lead screw is threadedly connected to the lower part of the sleeve. The bottom end of the lead screw extends to the inner side of the bottom of the worktable and is fixedly connected to a worm wheel that meshes with the worm gear. One end of the worm gear extends to the outside of the worktable and is fixedly connected to a handwheel.

[0011] Preferably, the height adjustment mechanism further includes scales symmetrically arranged on the outer sides of the front of the guide groove, and a pointer horizontally fixed to the lower outer side of the front of the indentation tray;

[0012] Preferably, the indentation mechanism includes an electric push rod 1 vertically fixed to the top of the horizontal plate, and an indentation frame disposed below the horizontal plate. A hanger is fixedly connected to the top of the indentation frame, the output shaft of the electric push rod 1 is fixedly connected to the hanger, an electric push rod 2 is fixedly connected to the top of the middle part of the indentation frame, a bottom groove is formed in the middle of the bottom end of the indentation frame, an indentation knife is disposed inside the bottom groove, and the output shaft of the electric push rod 2 is fixedly connected to the indentation knife.

[0013] Preferably, the indentation tool is matched with the indentation support plate;

[0014] Preferably, the indentation mechanism further includes guide grooves symmetrically opened on both sides of the bottom end of the indentation frame, and a top block movably connected inside the guide groove. Guide rods are fixedly connected to the top of both sides of the top block. Circular guide holes that slide with the guide rods are opened at the four corners of the indentation frame. Springs are movably sleeved on the outside of the guide rods, and the two ends of the springs contact the top block and the guide groove respectively.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This creasing device for carton processing achieves precise and visual adjustment of creasing depth through a height-adjustable creasing plate and scale indication. Operators can accurately control the creasing depth by observing the correspondence between the pointer and the scale, solving the problem of insufficient precision caused by the reliance on experience in traditional equipment. This makes the creasing depth adjustment more intuitive, accurate and repeatable.

[0017] This creasing device for carton processing achieves bidirectional clamping and fixing during creasing operation by setting a top block with pressure rollers and a spring buffer mechanism. When the creasing knife presses down, the cardboard is stably centered under the guidance of the pressure rollers on both sides, avoiding the problem of creasing deviation caused by unidirectional displacement of the cardboard during traditional creasing process, and significantly improving creasing accuracy and finished product quality. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall main structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the sleeve installation structure of this utility model;

[0020] Figure 3 For the present utility model Figure 1 Enlarged view of point A in the middle;

[0021] Figure 4 For the present utility model Figure 1Enlarged diagram of point B in the middle.

[0022] In the diagram: 1. Workbench; 2. Guide groove; 3. Indentation support plate; 4. Bracket; 5. Horizontal plate; 6. Worm gear; 7. Sleeve; 8. Lead screw; 9. Worm wheel; 10. Handwheel; 11. Scale; 12. Pointer; 13. Electric push rod one; 14. Indentation frame; 15. Hanger; 16. Electric push rod two; 17. Bottom groove; 18. Indentation knife; 19. Spring; 20. Guide groove; 21. Top block; 22. Guide rod; 23. Circular guide hole. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1-4 As shown, this utility model provides a technical solution:

[0025] A creasing device for carton processing includes a workbench 1 with a guide groove 2 at the top center. A creasing tray 3 is disposed inside the guide groove 2. A height adjustment mechanism is disposed between the creasing tray 3 and the workbench 1. The height adjustment mechanism includes a worm gear 6 rotatably connected to the inner side of the bottom center of the workbench 1 via a bearing, and a sleeve 7 vertically fixed to the bottom center of the creasing tray 3. A lead screw 8 is threadedly connected to the lower part of the sleeve 7. The bottom end of the lead screw 8 extends to the inner side of the bottom center of the workbench 1 and is fixedly connected to a worm wheel 9 that meshes with the worm gear 6. One end of the worm gear 6 extends to the outside of the workbench 1 and is fixedly connected to a handwheel 10. The height adjustment mechanism also includes scales 11 symmetrically arranged on the outer sides of the front of the guide groove 2, and a pointer 12 horizontally fixed to the lower part of the outer side of the front of the creasing tray 3.

[0026] In this embodiment, the height-adjustable indentation plate 3, in conjunction with the scale 11, enables precise and visual adjustment of the indentation depth. Operators can accurately control the indentation depth by observing the correspondence between the pointer 12 and the scale 11, which solves the problem of insufficient precision caused by the reliance on experience in traditional equipment adjustment, making the indentation depth adjustment more intuitive, accurate and repeatable.

[0027] like Figure 1 , Figure 3 and Figure 4As shown, bracket 4 is fixedly connected to the outer side of the right end of the middle part of workbench 1. A horizontal plate 5 is fixedly connected to the top of bracket 4. An indentation mechanism is provided below the horizontal plate 5. The indentation mechanism includes an electric push rod 13 vertically fixed to the top of the horizontal plate 5 and an indentation frame 14 provided below the horizontal plate 5. A hanger 15 is fixedly connected to the top of the indentation frame 14. The output shaft of the electric push rod 13 is fixedly connected to the hanger 15. An electric push rod 16 is fixedly connected to the top of the middle part of the indentation frame 14. A bottom groove 17 is opened in the middle of the bottom end of the indentation frame 14. An indentation knife 18 is provided inside the bottom groove 17. The output shaft of the electric push rod 16 is fixedly connected to the embossing knife 18. The embossing knife 18 is matched with the embossing support plate 3. The embossing mechanism also includes guide grooves 20 symmetrically opened on both sides of the bottom end of the embossing frame 14, and a top block 21 movably connected inside the guide groove 20. The bottom end of the top block 21 is rotatably connected to the pressure roller through the bearing. The top two sides of the top block 21 are fixedly connected to the guide rods 22. The four corners of the embossing frame 14 are provided with circular guide holes 23 that slide with the guide rods 22. The guide rods 22 are movably sleeved with springs 19. The two ends of the springs 19 are in contact with the top block 21 and the guide groove 20 respectively.

[0028] In this embodiment, by setting a top block 21 with pressure rollers and a spring 19 buffer mechanism, bidirectional pressing and fixing are achieved during the creasing operation. When the creasing knife 18 presses down, the cardboard is stably centered under the guidance of the pressure rollers on both sides, avoiding the problem of creasing deviation caused by unidirectional displacement of the cardboard during the traditional creasing process, and significantly improving the creasing accuracy and finished product quality.

[0029] Working principle: The cardboard to be creasing is laid flat on the creasing tray 3 of the workbench 1. The worm gear 6 is driven to rotate by rotating the handwheel 10. The worm gear 6 drives the worm wheel 9, which meshes with it, to rotate. The worm wheel 9 is fixedly connected to the bottom end of the lead screw 8, so that the lead screw 8 rotates synchronously. Since the lead screw 8 and the sleeve 7 are connected by threads and the sleeve 7 is fixed to the bottom of the creasing tray 3, the rotational motion of the lead screw 8 is converted into the vertical lifting motion of the sleeve 7, which in turn drives the creasing tray 3 to move up and down along the guide groove 2. The height of the creasing tray 3 can be precisely adjusted by observing the corresponding position of the pointer 12 and the scale 11. When the creasing tray 3 is adjusted to a suitable height, the electric push rod 13 fixed to the top of the horizontal plate 5 is activated to push the hanger 15 down. The hanger 15 drives the creasing frame 14 to descend as a whole until the top blocks 21 on both sides of the bottom end of the creasing frame 14. The pressure rollers contact the surface of the cardboard. As the creasing frame 14 continues to descend, the top block 21 compresses the spring 19 and moves upward along the guide groove 20, so that the pressure rollers on both sides press and fix the cardboard on both sides under the pressure of the spring 19. At this time, the electric push rod 16 fixed in the middle of the creasing frame 14 starts to move. Its output shaft pushes the creasing knife 18 in the bottom groove 17 to move downward. The creasing knife 18 performs precise creasing operation in the state where the cardboard is stably fixed. After the creasing is completed, the electric push rod 16 retracts first, causing the creasing knife 18 to disengage from the cardboard and return to the bottom groove 17. Then the electric push rod 13 retracts, driving the creasing frame 14 to rise as a whole. Under the elastic force of the spring 19, the top block 21 follows the guide rod 22 back to the initial position of the guide groove 20 and releases the pressing state on the cardboard. Thus, a complete creasing operation cycle is completed.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A creasing device for cardboard box processing, characterized in that: include The workbench (1) has a guide groove (2) at the top center. An indentation support plate (3) is installed inside the guide groove (2). A height adjustment mechanism is installed between the indentation support plate (3) and the workbench (1). The bracket (4) is fixedly connected to the outer side of the right end of the middle part of the workbench (1). A horizontal plate (5) is fixedly connected to the top of the bracket (4), and an indentation mechanism is provided below the horizontal plate (5). The height adjustment mechanism includes a worm (6) rotatably connected to the inner side of the bottom of the middle part of the workbench (1) via a bearing, and a sleeve (7) vertically fixed to the bottom of the middle part of the indentation plate (3). A lead screw (8) is threadedly connected to the lower part of the sleeve (7). The bottom end of the lead screw (8) extends to the inner side of the bottom of the workbench (1) and is fixedly connected to a worm wheel (9) that meshes with the worm (6). One end of the worm (6) extends to the outside of the workbench (1) and is fixedly connected to a handwheel (10). The height adjustment mechanism also includes scales (11) symmetrically arranged on the outside of the front sides of the guide groove (2), and pointers (12) horizontally fixed below the outside of the front of the indentation tray (3).

2. The creasing device for cardboard box processing according to claim 1, characterized in that: The indentation mechanism includes an electric push rod (13) fixed vertically to the top of the horizontal plate (5) and an indentation frame (14) located below the horizontal plate (5). A hanger (15) is fixedly connected to the top of the indentation frame (14). The output shaft of the electric push rod (13) is fixedly connected to the hanger (15). An electric push rod (2) is fixedly connected to the top of the middle part of the indentation frame (14). A bottom groove (17) is provided in the middle of the bottom end of the indentation frame (14). An indentation knife (18) is provided inside the bottom groove (17). The output shaft of the electric push rod (2) is fixedly connected to the indentation knife (18).

3. The creasing device for cardboard box processing according to claim 2, characterized in that: The indentation tool (18) is matched with the indentation tray (3).

4. The creasing device for cardboard box processing according to claim 2, characterized in that: The indentation mechanism also includes guide grooves (20) symmetrically opened on both sides of the bottom end of the indentation frame (14), and a top block (21) movably connected inside the guide groove (20). Guide rods (22) are fixedly connected to the top of both sides of the top block (21). Circular guide holes (23) that slide with the guide rods (22) are opened at the four corners of the indentation frame (14). A spring (19) is movably sleeved on the outside of the guide rod (22). The two ends of the spring (19) are in contact with the top block (21) and the guide groove (20) respectively.